230 TRANSACTIONS, NATURAL HISTORY SOCIETY OF GLASGOAV. 



GrifP. I confess I do not see sufficiently distinct 

 marks in the variety to warrant its separation from 

 the typical form of Greville. 



A. buUosus, Lamx. {A. Turneri, Phyc. Brit). — 

 " Appin " (Carmichael). 



Order V.— Ectocarpaceje. 



Bctocarpus terminalis, Kiitz. — Growing on 

 several of the smaller brown and green algae, Loch 

 Etive. Specimens which I collected at Puffin Island, 

 Anglesea, were named for me by Mr. E. A. L. Batters, 

 and the plants I found in Loch Etive agree in all 

 particulars with these. 



E. confervoides, Le Jol., var. siliculosus, Kjellm. 

 — Very common in the district. 



E. granulosus, C. Ag.— In some rock-pools near 

 the Falls of Lora, and cast ashore on islands in the 

 Firth of Lome. 



E. crinitus, Carm— "On muddy shores, Appin" 

 (Carmichael). 



E. distortus, Harv.— "On Zostera, Appin" (Car- 

 michael). 



I failed to find either of these species, although I 

 looked carefully for them in likely situations both 

 at Appin and elsewhere. 



Isthmoplea sphserophora, Kjellm. (Ectocarpus 

 sphcerophorus, Phyc. Brit.).— "On Cladophora rupestris, 

 Appin" .(Carmichael). Fairly common on Plumaina 

 elegans, wherever that plant occurred. 



Pylaiella litoralis, Kjellm. {Ectocarpus litoralis, 

 Phyc. Brit.). — Very common on Fucus, passim. 



Order VI. — ARTHROCLADIACEiE. 



Arthrocladia viliosa, Duby. —" Appin " (Car- 

 michael). This plant is no doubt not uncommon. 

 I obtained several fragments in dredgings taken the 

 day before I left Oban, and had no opportunity of 

 searching more carefully for it. 



Order VII — Elachistace^. 



Elachista fucicola, Fries. — Very common on Fuciis 

 serratus, passim. 



